Home / 718,890,638,339.93-992,100,265,866.98-398,106,473,447.93

Finding the Fourth Proportional to 718,890,638,339.93, 992,100,265,866.98 and 398,106,473,447.93

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Solution

The fourth proportional to 718,890,638,339.93, 992,100,265,866.98 and 398,106,473,447.93 is: 549,404,202,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,339.93 : 992,100,265,866.98 = 398,106,473,447.93 : x
  2. Step 2: Convert to fraction form
    718,890,638,339.93/992,100,265,866.98 = 398,106,473,447.93/x
  3. Step 3: Cross multiply
    718,890,638,339.93x = 992,100,265,866.98 × 398,106,473,447.93
  4. Step 4: Simplify right side
    718,890,638,339.93x = 394,961,538,151,057,123,704,832
  5. Step 5: Solve for x
    x = 394,961,538,151,057,123,704,832/718,890,638,339.93
  6. Step 6: Final answer
    x = 549,404,202,930.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.